class MyClass(ReadOnlyMixin): @property def readonly_prop(self): return "This is a read-only property." # 使用示例 obj = MyClass() print(obj.readonly_prop) # 输出: This is a read-only property. try: obj.readonly_prop = "Attempt to change read-only property." except AttributeError...
I = property(getI, setI, delI, "Property I") >>> a = Class1() >>> a.I 1234 >>> a.I = 123456 >>> a.I 123456 如果只是 readonly property,还可以用另外一种方式。>>> class Class1: def __init__(self): self.__i = 1234 @property def I(self): return self.__i >>> a ...
>>>class Class1: def__init__(self): self.__i=1234 defreturn__i def__i= value defdel__i I ="Property I") >>>= Class1() >>> a.I 1234 >>>=1000 >>> a.I 1000 如果只是 readonly property,还可以用另外一种方式。 >>>class Class1: def__init__(self): self.__i=1234 @p...
class person: def __init__(self,x): self.__age = 10; def age(self): return self.__age; t = person(22) # t.__age = 100 print(t.age())最好的方法class MyCls(object): __weight = property 只读 python Python 转载 lgmyxbjfu ...
>>>classREADONLYDESC:def__get__(*args):pass# 实现描述符只读属性：赋值时抛出 AttributeError 错误def__set__(*args):raiseAttributeError('禁止修改')描述 定义描述符的__set__()方法，并且抛出AttributeError异常，即可定义只读描述符。示例 >>>classCANSet:# 没有定于__set__则描述符属性可被修改def...
(self, instance, owner): return self.value def __set__(self, instance, value): raise AttributeError( "'%s' is not modifiable" % self.value ) class Circle(object): pi = ReadonlyNumber(3.14) def __init__(self, radius): self.radius = radius @LazyProperty def area(self): print('...
classLazyProperty:def__init__(self,function):self.function=functionself.name=function.__name__def__get__(self,obj,objtype=None):ifobjisNone:returnselfvalue=self.function(obj)setattr(obj,self.name,value)returnvalueclassMyClass:@LazyPropertydefexpensive_computation(self):print("Computing...")retur...
classCOLOR(Enum): YELLOW=1 #YELLOW=2#会报错 GREEN=1#不会报错,GREEN可以看作是YELLOW的别名 BLACK=3 RED=4 print(COLOR.GREEN)#COLOR.YELLOW,还是会打印出YELLOW foriinCOLOR:#遍历一下COLOR并不会有GREEN print(i) #COLOR.YELLOW\nCOLOR.BLACK\nCOLOR....
class类 clear清除 close关闭 cmd/commond命令 code 代码 /coding编码 col 列/colum列 community 社区 computer 电脑 continue继续 在循环中跳过循环 copy复制 count计数 create创建 customize:自定义,满足客户需求 cut 剪切 D data数据 day:日 decode解码
67. class 类 68. attribute attr 属性 69. self 自己 70. property 特性、属性 71. reference ref 引用 72. static 静态的 73. object 对象 74. animal 动物 75. subclass 子类 76. inherit 继承 77. override 重写 78. salary 薪水 79. offer 入职通知书 ...